Heel-seat-fitting machine



J. "i". HVVDRT HEEL SEAT FITTNG MACHINE Filed March 20, 1925 4 Sheets-Shea?, l

' J. T. HAWCRH HEEL SEAT FITTING MACHINE Feb. 1

Filed IVLarGh 20, 1925 4 Sheets-Sheet 2 Fea. 1, 92?, LlSBS T. HAWORTH HEEL SEAT FITTING MACHINE Filed March 20, 1925 sheets-sheet 5 J. T. HAWORTH HEEL SEAT FITTING MACHINE Feb. 1

6 4 Sheets-$heet 4 Filed March 20. 19 3 Fgl.

ratentecl reb. 1, 12M?.

Waupaca PAYNE' FlQE.

TOI-IN THOMAS HAWORTI-I, OF ACCRINGTON, ENGLAND, ASSIGNOR- T0 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEEL-SEAT-FITTING MACHINE.

Application led March 20, 1925, Serial No. 17,044, and in Great Britain March 28, 1924.

This invention relates to shoe treating 1nachines and is illustratively shown in a machine for trimming surplus material from the heel-seat portion of the sole of a shoe to perform what is termed a heel-seat titting operation.

In preparing shoes for the application of wooden heels, the heel-seat port-ion of the sole of the shoe is trimmed or beveled around its periphery so that the heel may be brought into close relation to the upper and will be firmly supported. This operation has been very extensively performed by hand with resulting inaccuracy in the work and a danger of damage to the upper of the shoe. Recently an increasingly large proportion of such work has been performed successfully by machines by means of which the heel- .seat fitting operation may be performed more speedily and more accurately than by hand. In the use of such machines, however, an appreciable interval of time is required for the performance of the trimming operation by the machine and at the completion of the operation the machine must remain idle while the operator removes the work which has been fitted and inserts another piece of work in the machine.

vWith this in view, it is an object of the present invention to provide a machine organization adapted for use in performing; heel-seat fitting operations by the use of which .such operations may be performed more quickly than heretofore without sacrificing any of the well-known advantageous characteristics of previous machines of this type.

Accordingly, a feature of this invention consists in the provision of a machine having two or more work supports adapted to.

tor to mount a piece of work upon one of the work supports, bring it into position adjacent to the treating mechanism, and, after starting the machine, leave this piece of work to be operated upon while he is mounting another piece of work upon the idle work support, thus enabling a more efficient use of the treating mechanism as well as allowing a more efficient use of the operators time.

The invention also provides, as a further feature, a machine having a single control lever by means of which the operator effects the interchange of a plurality of work supports and puts in operation mechanism controlling one of these work supports and work treating mechanism.

In accordance with other features of the invention, a plurality of cutters of the milling type are provided for trimming surplus material from the periphery of the heel-seat of a shoe, and, preferably, one of these cutters arranged to trim the rear of the heelseat is disposed with its axis heightwise of the heel-seat of the shoe and perpendicular to the axis of one of the other cutters. In order that the machine may be adapted for use with shoes of different sizes and styles, mechanism is also provided for adjusting the relative position of cutters which act upon the sides of the heel-seat and the radius of curvature of the arc of movement of a cutter which is moved aro-und the rear of the heel-scat. Adjustments are also provided for the work supports so that the path of movement of a work support, as it brings the work into cooperative relation with the cutters, may be disposed exactly midway between the cutters which act upon the sides of the heel-.seat and may be disposed at the proper angle and at the proper elevation with respect to the position of said cutters.

These and other features of the invention have been set forth in the accompanying claims and are more fully described in the following specification taken in connection with the drawings, in which:

Fig. l is a side elevation of the complete machine;

Fig. 2 is a plan View of the cutter-operating mechanism;

Fig. 3 is a central vertical section through Fig. 2, showing the parts as they would be il the rear cutter had been swung through ninety degrees to bring it into this section plane;

Fig. 4 is a diagrannnatic view partly in section of the control dial mechanism for adjusting the relative position of the critters;

Figs. 5, C and 7 are diagrammatic, perspective views illustrating the coaction ot the various cutters with the heel-seat portion of the sole of a shoe;

Fig. 8 is a perspective view of a fragment of a shoe showing a trimmed heel-seat;

Fig. 9 is a rear elevation, with the trame cut away to show the driving mechanism;

Fig. 10 is a sect-ion on the line 10-10 of Fig. 9, looking up, at the clutch mechanism;

Fig. 11 is a section on the line 11-11 ot Fig. 10;

Fig. 12 is a section taken just outside the frame of the machine, illustrating the mechanism for stopping the machine at the completion of one cycle;

Fig. 13 is a front elevation of the machine;

Fig. 14 is a perspective view, with parts broken away, of the sliding carriage for the work supports and a coacting control cam; and

Fig. l5 is a perspective view, from the rear, of one ot the work supports.

The illustrative machine is a twin machine with a plurality of work supports which may be brought one after another into operative relation to a shoe-heel-seat trimming mechanism, thus allowing the operator to mount a piece of work upon an idle support while the machine is trimming the heelseat of the sole of a shoe which has already been mounted upon one of the other work supports. To this end a slidable carriage 20 (Figs. 1 and 13) carrying the work supports 22 and 24 is mounted upon ways 26 at the upper part ot' a box-like base trame 30 so that itmay be moved from side to side to bring said work supports to a position in front ot' and adjacent to the operating position. Limiting stop members 32 and 34 on the frame 30 coact with said carriage to determine its stop positions. Lateral trimming cutters 36 and 38 Fig. 13) together with a rear cutter 4() (Figs. 3 and 5) are mounted in and constantly rotated in an overhanging frame 42 (Fig. 1) supported by brackets 43 above and to the rear of the stop position to which the work supports are brought by the carriage 20. To carry a piece of work from said forward stop position to a position for operative engagement with the trimming cutters and then back to its forward position, the sliding carriage 20 is provided in turn with two sets of ways 44 and 46 (Figs. 13 and 14) upon which the work supports 22 and 24 are mounted for movement from front to back in the machine.

Each of the work supports, as may be seen from an inspection of Figs. l, 13 and 15, comprises a carrier base member 48 which slidably engages one or the other of the ways 44 and 46 upon the carriage 2O and is itself provided with a dovetail joint 50 (Figs. 1 and 15) extending from side to side ot the machine so that in sett-ing up the machine the exact position ot the superstructure of the work support may be adj ustably determined with respect to the lateral cutters by setting said superstructure in proper position and clamping it there by means of a bolt 52 so that each work support will be carried from front to back along a path exactly midway between the lateral trimming cutters. Still another clove-tail joint 54 (Figs. 13 and 15), extending at right angles to the joint 50, allows the work support to be properly positioned so that the forward extent of the cutting action of the lateral cutters may be determined in accordance with the size of the particular shoe which has been mounted upon the support, and, to :ta`I cilitate this adjustment, a cap member 56 is provided with a depending nut 58 (Fig. 1) located within a recess 60 and engaging a. screw 62 provided with an Operating handle 64. In order that the angular position of the shoe upon the work support may be varied slightly, asmay be required by the shape of the work, a turntable 66 is mounted upon the cap member 56 and is held in adjusted position by means ot screws 68 passing through arcuate slots in said turntable. In this turntable aI post 70 is vertically adjustable by means of a rack 7 2 formed in the post and a pinion 74 which may be turned by engagement with a head 76 formed on said pinion to adjust the work support vertically (heightwise of the sole) to determine the depth of cut made by the trimming cutters when the work is moved into operative engagement therewith. This post carries at its upper end a pin 80 and side flanges 82 by means of which a last, such as that shown at 90, may be rigidly positioned upon the work support.

Passing now to the trimming niechanism. which is best illustrated in Figs. 2 and 3. it will be seen that the rear cutter 4U is rotatable upon a vertical axis substantially 11 ormal to the heel-seat of the sole and that the lateral cutters 36 and 38 are rotatable upon parallel horizontal axes extending trom trent to back in the machine substantially parallel to the length ot the shoe. Provision is made 'tor laterally adjusting` the cutters 3G and 38 toward and away trom each other in order that shoes of various sizes may be properly treated by the machine, and to this end, said cutters are mounted upon horizontal stub shafts 92 sleeved in carriages 94 slidably supported for movement transversely ot the machine toward and away from the center lino in guideways 96 and 98 (Fig. 3) formed in auxiliary frame men'ibers 100 and 102 which form part of the Yframe 42. An adjusting screw 104 (Figs. 2, 3 and 13) 'having right and left-hand threads is engaged with each of the carriages 94 so that by turning the screw 104 the distance apart of the lateral cutters 36 and 38 may be accurately determined. As has already been noted, the cutters are constantly rotated when the machine is in operation, and to this end, the carriages 94 have vertical stub shafts 106 (Figs. 3 and 1.3) which are connected at their lower ends by bevel gears 108 and 110 with the horizontal cutter carrying stub shafts 92, and are driven, in turn, by bevel gears 112 meshing with bevel gears 114 slidably mounted (see Figs. 2 and 13) for rotation with a horizontal shaft 116 supported in fixed bearings in the overhanging frame 42 and provided, bet-Ween its ends, with a bevel gear' 118 meshing with a gear upon the lower end of a vertical shaft 120 (Fig. carried in a top frame 122 superposed on the overhanging frame 42. vThe shaft 120 is driven in turn by gears 124 from a horizontal shaft 126 carried in bearings in said frame 122 and rotated by a gear connection 128 (Figs. l, 2, 3 and 9) from the vertical shaft 130 at the center of the back of the machine. This shaft 130 is'constantly rotated from a drive shaft 132 (Fig. 9) whenever' the machine is in use. Thus the lateral milling cutters 36 and 38 act progressively to remove surplus material from the sides of the periphery of the heel-seat portion of the sole along straight parallel paths as the work is brought into operative relation with said cutters.

The drive shaft 132 (Fig. 9) is journaled in the base frame and is connected by bevel gears 134 and 136 to the vertical shaft 130. At its outer end, the drive shaft 132 is provided with fast and loose pulleys 138 and 140 rotating within a bracket bearing 142. A belt shifter 144 (Fig. 1), slidably mounted on an arm 146, is used for starting and stopping the machine and is lreld in one position or the other by a latch 148. For the removal of the surplus matcrial around the curved rear portion of the periphery of the heel-seat of the sole being treated, the rear cutter is mounted in a swinging frame 150 (Figs. 2 and 3) rotatably supported upon a vertical pivot pin 152 (Fig. 3) engaging a suitable socket in a portion of the overhanging frame 42 and the swinging frame is provided at its forward end with a semi-circular rack 154 for engagement with a sliding rack 156 traveling in a groove formed adjacent to the auxiliary frame member 100. This rack 156 is retained in the groove by means of a cover member 158. @Scillating movement is imparted to this sliding rack 156 by means of a roll 1.60 (Figs. 9 and 13) engaging a suitably formed groove in a barrel cam 162 so that for each complete cycle of the machine the sliding rack 156 will be given a single reciprocation thereby to carry the swinging carriage and the rear cutter 40 from the starting position shown in Fig. 2 around the curved rear portion of the periphery of thel sole and back again to its starting position. Another bevel gear 161 (Fig. 9) on the drive shaft 132 meshes with a gear 163 carried upon a transverse shaft, said transverse shaft having a worm 164 meshing with a worm gear 166 loosely rotatable upon a clutch shaft 168 which is also supported in the sides of the main frame 30. This worm gear 166 carries one-half 170 of a clutch which is adapted to cooperate with a cone-shaped clutch member 172 which is splined (Fig. 10) to the clutch shaft 168.l 1V hen the clutch is closed so that thc clutch shaft 168 is rotated, movement is thereby imparted to a barrel control cam 174 (Figs. 1 and 9) through gears 176 and 178, a transverse shaft 180, through gears 182 and 184, another stub shaft 186, and a pair of bevel gears 188 and 190. The barrel control cam 162 is operatively connected to the clutch shaft 168 for rotation therewith by means of bevel gears 192 and 194, a vertical shaft 195 and a pair of bevel gears 196 and 19T. The vertical shaft 195 is journaled in brackets 198 and 199 attached to the main frame of the machine.

To make this swinging frame 150 more rigid, it is provided adjacent its outer end with a roller 200 (Fig. 3) traveling upon a track 202 provided in the frame 42 and held in engagement with said track by means of an overhanging semi-circular, retaining member 204 (Figs. 2 and 3) supported by means 'of screws 206 (Fig. 2) upon arms 208 and 210 (Figs. 2 and 9) by means of which the top frame 122 is sup ported upon the frame 42. The swinging carriage 150 is slotted at 212 (Fig. 3) to allow the adjustment lof a bearing member 214 having a depending sleeve 216 for the support of a vertical shaft 218, which is arranged to be constantly rotated during the operation of the machine by bevel gear connections 220 and 222 through a horizontal shaft 224 supported in brackets 226 and 228 formed as a part of said swinging carriage 150 and a vertical spindle 230 journaled in the top frame 122. The upper end of the spindle 230 is connected by gears 232 with the horizontal shaft 126 which is driven through the vertical shaft 130 from the drive shaft 132 of the machine, as previously described. ln order that the machine may be adjusted for use in trimming heelseats of various slzed shoes, 1t 1s necessary that provision be made for adjusting the curvature of the are of movement of the rear cutter 40 as the swinging carriage 150 carries it around the rear end of the heelseat of the shoe, and to this end there is provided a screw 234 rotatably secured -in said swinging carriage 190 and threaded into the bearing member 214. It will be noted that this adjustment is allowed without interfering with the driving connections for said cutter because of the splined connection of the bevel gear connection 220 with the shaft 224. Thus, by turning tho adjusting screw 234, the radius of curvature of the arc of movement of the rear cutter may be adjusted at will while the machine is in operation.

To facilitate the adjustment Iof the radius of the are of movement of the rear cutter and adjustment of the relative positions of the lateral cutters, means are provided for simultaneously adjusting both the screw 104 by means of which the position of the lateral cutters is controlled and the screw 234 by means of which the position of the rear cutter upon its swinging carriage is controlled. To this end a pinion 240, the pitch line of which is indicated in Fig. 4, is mounted upon the end of the screw 104, and another pinion 242 (Figs. 2, 3 and 4) is provided upon the end of the screw 234. )When the swinging carriage 150 is in the position indicated in Fig. 2, both of these pinions are in mesh with a larger pinion 244 secured to a horizontal stub shaft 246, the outer end yof which is journaled in a bracket 248 secured to the right-hand side of the machine. In this bracket is mounted a shaft 250 provided at its outer front end with an operating handle 252, and, preferably, said handle 252 will be provided with an indicating pointer 253 (Fig. 13) which, by co-operating with suitable indications on the bracket 248, enables the operator readily to adjust the positions of the cutters to the exact desired relation for any particular size or style of shoe. A skew gear 254 (Figs. 2 and 4) on the shaft 250 meshes with a worm 256 carried upon the shaft 246 so that adjustment yof the operating handle 252 is communicated to the pinion 244 and thence to the pinions upon the respectve screws 104 and 234, thereby simultaneously adjusting the distance between the lateral cutters 36 and 38 and the radius of the arc of movenient of the rear cutter 40.

If desired, suction mechanism may be connected to an intake member 258 (Fig. 1) secured in the frame 42 to facilitate the removal of dust and chips during the operation of the machine.

The use of the machine is simplified by the provision of a single control lever 260 (Figs. 1 and 13) at the front of the machine so arranged that, following the application of power to the drive shaft, the

operator may, by the manipulation of this single lever 260, effect a lateral movement of the work supports to bring them alternately into position adjacent to the treating mechanism and start the control mechanism by means of which a piece of work on one of these work supports is carried into operative relation to the treating mechanism and returned to its original position as one cycle of the machine is completed, thus moving said work supports along angularly related rectilinear paths. The lever 260 is mounted on a short, horizontal shaft 262journaled in the frame 30 of the machine and in a bracket 264 projecting outwardly from the front of the machine. A segmental skew gear 266 (Figs. 13 and 14) mounted on the shaft 262 between the bracket 264 and the main frame, is arranged for engagement with a corresponding pinion 27() secured to a stub shaft 272 carried in a bracket 274 (Figs. 1 and 13) at the front of the machine. Another gear 276 (Figs. 13 and 14) of similar type is also secured to the shaft 272 and engages the teeth of a rack 278 depending from the front edge of the sliding carriage 20 upon which the work supports are mounted.

The base members 48 of each of the work supports are provided with depending pins 280 traveling in slots 282 extending from front to back in the carriage 20, and as this carriage is moved from side to side to bring one or the other of the work supports into a position in front ofl and adjacent to the treating mechanism, these depending pins are arranged to enter an open groove 284 (Fig. 14) formed in the upper surface of a plate 286 which is slidably mounted (Figs. 1, 13 and 14) on the upper part of the frame 30 for front and back movement in a rectilinear' path toward and away from the operator. The ends of the groove 284 are flared to facilitate the entrance of the depending` pin 280 upon the particular work support in case of accidental displacement of the latter from its intended position. Upon the under side of the plate 286 a depending pin 288 is provided with a roller 290 traveling in the groove of the barrel control cam 174. By means of this arrangement the swinging of the control lever 260 through a semi-circle brings one or the other of the work supports into position in front of the trimming mechanism with its depending pin 280 in engagement with the groove 284 of the plate 286 so that, in the cycle of the machine, the work carried upon this particular work support will be moved into operative relation to the trimming tools, held there during a suitable interval and then returned to position adjacent to the front of the machine ready for the subse quent interchange of work supports to bring another piece of work into position for control and treatment by the machine. A

`spring-pressed latch 291 is provided in the top of the frame 30 to engage one or the other of suitable recesses in the bottom of the sliding carriage 20 to hold the latter releasably in position with one of its work supports in co-operative relation to the grooved plate 286.

Connections are also -provided between the control lever 260 and the movable clutch member 172 arranged so that the throwing over of the lever in either direction to bring another piece of work into proper position to be taken up by the control cam serves also to close the clutch and set the machine in operation to go through a single cycle. At the completion of this cycle the arrangement is such that the clutch is automatically thrown open and the parts brought back to a position ready for the repetition of the starting operation under the control of the lever 260. To connect the control lever 260 to the clutch, a worm gear 292 (Fig. 1) is secured to the rear end of the shaft 262 inside the frame of the machine in mesh with a suitable gear 294 (Figs. 1 and 13) carried upon a transverse shaft 296 supported by one or more brackets 298 (Fig. 13) inside the frame. At the outer end of the shaft 296 there is secured a cam 300 (Figs. 10, 11 and 13), which is provided with shoulders 302 (Fig. 11) for engagement with latches 304 carried upon a sliding` frame 306, thus making it effective whichever way the control lever 260 is thrown. These latches are resiliently mounted for free turning movement outwardly away from the frame 306 but are limited against movement inwardly toward the frame when engaged by one or the other of the shoulders 302 upon the cam 300. A rod 308 (Figs. 10 and 11) is threaded in the frame 306 and, at its other end. in a wedge member 310 which coacts with and is arranged to move in and out a thrust member 312 interposed between said wedge and the cone-shaped clutch member 172 which is splined to the clutch shaft 168. As may be seen from Figs. 9 and 10, the wedge-shaped member 310 abuts against the inside of the frame 30 of the machine so that movement in one direction throws the cone-shaped clutch member 17 2 into engagement with the driven member 170, thereby to start the machine upon its cycle of operations when the operator throws over the control lever in either direction. Preferably, and as illustrated, suitable thrust bearings are provided between the various parte to reduce the friction.

In orde-r that it may not be necessary for the operator to stop the machine at the completion of the cycle of operations, mechanism is provided automatically to throw out the clutch member 17 2 exactly at the completion of the cycle and to this end a cam 314 tension 320 of the frame 306. This frame is slidably mounted in a slot in the frame 30 of the machine for movement from front to rear and is urged to its rearward position by means of a spring 322 interposed between the frame 306 and a cover member 324, said cover member being bolted to the outside of the main frame of the machine. As the sliding frame 306 is moved forward by the manipulation of the operator-controlled lever 260 acting through the cam 300, it will be latched in forward position by means of a spring-pressed plunger 326 (Fig. 12) carried in a recess in the cover 324 and arranged for engagement with notch 328 in the extension 320 of the frame 306. Thus the frame 306 will be retained in forward position against the tension of the spring 322 until the machine has completed its cycle, it being noted that Fig. 10 is a view taken from the under side looking up while Fig. 12 is a view taken inside the frame looking out and that the frame 306 is in front of the clutch shaft 168 in the machine. Thus it appears that the operation of the sliding` frame 306 to throw the clutch member 172 into engagement with the other clutch member 170 is also accompanied by the removal of the extension 320 from the notch in the cam 314, thereby releasing the clutch shaft for rotation. and that the frame 306 will be retained in its forward position by the plunger 326. As the clutch shaft 168 nears the end of al single revolution. a projection 330 (Fig. 12) upon the cam 314 comes into engagement with the end of a bar 332. slidably mounted in the cover member 324v upon the outside of the frame and normally projected toward the rear by a spring 334 in a recess in said cover. The bar 332 is provided. with a notch 336, the rear side of which is inclined for engagement with a pin 338 proiecting laterallv from the plunger' 326. This arrangement operates to release the plunger 326 from the notch 328 in the extension 320 as the clutch shaft approaches the completion of a single revolution` thereby allowing the spring 322 to force the frame 306 toward the rear of the machine so that its extension 320 will engage the notch 318 thereby to stop the ma.- chine exactly at the completion of a single revolution of the clutch shaft 168.

Tn using the machine, the operatoil will adjust the machine to meet the conditions imposed by the particular work at hand and to this end he will make adjustments such as may be required upon the individual. parts of the work supports to bring the work to the proper level with respect to the cutters and to the proper angle With respect to the path of movement of the Work .support from front to back in the machine and. Will also manipulate the handles 64 to determine the extent of the cutting action of the lateral cutters. He Will also, by manipulation of the handle 252 at the upper right-hand side of the machine (Figs. 2 and 13), adjust the lateral cutters so that they are properly spaced and simultaneously therewith adjust the radius of curvature of movement of the rear cutter. He will then mount a piece of Work upon the right-hand work support, assuming that the parts are in the position illustrated in Fig. 13, and throii7 the control lever Q60 to the left through one hundred and eighty degrees, thereby to bring this Work support into a position in alinement with and adjacent to the trimming mechanism and by this same movement will have thrown in the clutch to .start the cycle of operation of the control cams. During this cycle the sole 350 (Figs. 3, 5, G, 7 and 8) of a shoe 352 mounted upon a last 90, which is positioned upon the Work support by means of the pin and the anges 82, is moved to the rear starting from the position illustrated in Fig. 5 to bring it into engagement -with the constantly rotating lateral cutters 36 and 3S, thereby trimming or beveling the lateral portions of the heel-seat of said sole to remove surplus material from the periphery thereof as the shoe is moved to the rear, as indicated in Fig. G. lVhen .the Work support and the shoe carried thereby has reached its rearmost position so that the lateral cutters 36 and 38 have trimmed far enough forward upon the shoe to produce the desired shoulders 356 (Fig. 8) for coaction with the breast of the heel, then the Work Will be held temporarily in this rearmost position during the action of the rear trimming cutter 40. At this time the barrel control cam 162 Will reciprocate the raelc 196 (Fig. QV), thereby to oscillate the frame carrying said rear cutter to move the rear cutter through an angle of one hundred and eighty degrees, as indicated in Fig. 6, to trim off or bevel the rear end of the heel-scat portion of the sole joining the trimming cuts already made by the lateral cutters. The action of the control cams 174A and 162 (Fig. 1) will now return the Work support in question to the front of the machine and will carry the frame supporting he rear cutter back to its original position, whereupon upon the completion of the cycle of operations, the clutch will be automatically disengaged and the clutch shaft 168 stopped exactly at the completion of a single revolution by the mechanism previously described and particularly shown in Fig. 12. During the interval required for the operation of the machine the operator will have had time to mount another piece of Work upon the idle Work support so that as the machine completes its cycle of operations, he will need only to swing the control lever 260 back through one hundred and eighty degrecs to bring the Work support carrying spaced portions of the peripheries of the heel-seats of soles of shoes, and a plurality of Work-.supports operable to bring the soles of shoes carried by said supports into operative relation to the trimming means one at a time.

2. A heel-.seat itting machine having, in combination, means for simultaneously beveling separated portions of the peripheries of the heel .seats of the soles of shoes, and a plurality of Work supports arranged to bring the soles of shoes carried thereby into successive eo-operation with said beveling means.

3. A heel-seat fitting machine having a lateral rotary cutter to trim surplus material from the lside of the periphery of the heel-seat of the sole of a shoe, and a cutter having its axis at right angles to the axis of the first-mentioned cutter arranged to trim surplus material from the rear of the periphery of the heel-seat of the sole.

4c. A heel-seat fitting machine havingj in combination, successively acting cutters for trimming surplus material successively from the side and rear peripheral portions of the heel-seats of soles, and a plurality of Work supports movable alternately into co-operation With said successively acting trimming critters.

5. A heel-seat fitting machine having` means for trimming surplus material simultaneously from the opposed peripheral portions of the heel-seats of soles, a pair of Work supports, and means for causing relative movement of the trimming means and the Work supports to cause the trimming means to operate alternately upon pieces of work carried by the respective supports.

G. A heel-seat fitting machine having a pair of rotary cutters arranged to operate, one on each ofthe opposite edges of the heelseat portion of a sole, to trim surplus material therefrom, and a rotary cutter arranged to trim surplus material from the rear portion of the heel-seat of the sole having its axis at right angles to the axis or" one of the first-mentioned cutters.

7. A heel-seat fitting machine having a pair of rotary cutters with their axes subr stantially parallel to one another and to the lao length of a sole arranged to trim surplus material from the lateral portions ot the heel-seat oi' the sole, another rotary cutter having its axis substantially perpedicular to the heel-seat of the sole, and means for moving said last-named cutter transversely of the heel-seat to trim surplus material from the rear end of the sole.

8. A heel-seat fitting machine having a a pair of critters arranged to operate simultaneously upon the edges of lthe heel-seat portion of a sole to trim surplus material therefrom, a third cutter arranged to trim surplus material from the rear portion of the heel-seat of the sole, said third cutter being mounted ior movement transversely of the sole. in a curved path, and means for varying the curvature of the are of movement of said cutter.

9. A heel-seat itting machine having a cutter arranged to trim surplus material from the rear portion of the heel-seat ot a sole, a pivoted support for said cutter arranged to guide it around the rear portion of the sole in a predetermined path, and means for varying the radius of curvature ot the path of movement of said cutter.

l0. A heel-seat litting machine having a lateral cutter operable to trim the edge of the heel-seat port-ion of a sole to remove surplus material therefrom, and a rotary cutter having its axis extending heightwise of the heeleseat ot the sole movably mounted to trim surplus material from the rear portion of said heel-seat to join the cut made by the lateral cutter.

l1. A heel-seat fitting machine having laterally disposed rotary cutters arranged With their axes substantially parallel to the general direction of the length of a sole to be operated upon, a third rotary cutter arranged to trim surplus material from the rear portion of the heel-seat of the sole, means tor supporting said third cutter ior movement in an arc around said rear portion, means i'or producing relative movement ot the cutters and the sole in the general di rection et the length of the sole, means ior adjustably positioning said cutters at varying distances from one another, and means 'for varying the radius of curvature of the arc of movement of the third critter.

l2. A heel-seat litting machine having, in combination, means for supporting and positioning a sole, a cutter to trim surplus material :from the periphery of the heel-seat ot said sole, means 'for operating said cutter, and cam-operated means for carrying the sole from a free position to a position for en gagement with the cutter, holding it fixed there While the cutter is operated to trim the heel-Seat and then returning it to said iirstnamed position.

13. A heel-seat fitting machine having, in combination, a Work support, a rotary cutter, pivoted means tor supporting said cutter for n'iovement in an arc around the rear portion of a sole, cam-controlled means for moving said Work support from a tree position to a position for engagement of the cutter With the sole, holding it there for the operation of the cutter and then returning it to the ree position, and for oscillating said cutter support While the work support is held in operative position to move the cutter around the rear portion of the heel-seat of the sole.

1li. A machine for use in the manufacture oi' shoes having, in combination, a plurality ot Work supports, mechanism for treating a shoe Which is carried by one of said Work supports, a mechanism for moving either' Work support to operative position in engagement with said treating mechanism, and means for bringing either of said Work supports alternately into co-operative relation with said support-moving mechanism.

l5. A heel-Seat fitting machine having, in combination, a cutter to trim surplus material trom the rear portion of the heel-seat ot the sole ot a shoe, a plurality of Work supports, mechanism for moving a Work support into co-operative relation with said cutter', and means for bringing one of said Work supports into (3o-operative relation with said support-moving mechanism While another ot' the Work supports is lett free for the removal and replacement of Work thereon during the operation of the machine upon work carried by said rst-named Work support.

16. A heelseat fitting machine having, in

combination, a plurality 'of Work supports,

trimming mechanism for removing surplus material from the periphery o't the heelseat portion of the sole of a shoe carried by one ot' said Work supports, a cam for moving one oi said work supports into cti-operative relation with said trimming mechanisn'i, and a control lever constructed and arranged to move either 'work support into position for control by said cam and to remove the other Work support 'from position for control by said cam.

17. A heel-seat fitting machine having, in combination, a pair ol'" work supports, trimming mechanism for removing surplus material from the periphery ot the heel-seat portion of the sole ot a shoe carried by one of said Work supports, driving mechanism Yfor said trimming mechanism, and a control device constructed and arranged to control the operative connection of said driving mecha` nism with said trimming mechanism and the relative movement of a Work support and said trimming mechanism.

18. A machine for use in the manufacture of shoes having, in combination, mechanically operated mechanism for treating a shoe, a. pair of Work supports, driving mechanism, mechanism for causing relative loi;

movement of a Work support and the treating mechanism, and a starting lever constructed and arranged to bring one or the other ot said Work supports under the control of said mechanism for causing relative movement and to etieet the interconnection ot said driving mechanism with said treating mechanism.

19. A machine for use in the manufacture of shoes having, in combination, nieelianically operated mechanism for treating a shoe, a pair ot Work supports, control mechaiiisin for one of said work suppoits, and a single control lever constructed and arranged to interchange the Work supports and put in operation the mechanism controlling` one of these Work supports and the Work-treating mechanism.

Q0. A heel-seat fitting machine having a pair ot' spaced rotary cutters, a work support, means for causing relative movement of said Work support and said cutters to bring the lieel-seat portion ot the sole ot' a shoe carried by said work support into cooperative relation With the cutters vvliereby the cutters may operate progressively along the sides of the heel-seat portion, means for adjusting' the spacing of said rotary cutters to determine the Width of the heel-seat cut en the sole, and means for adjusting the elevation ot said Work support With respect to said cutters.

21. A heel-seat fitting machine having, in combination, a pair of Work supports, trimming mechanism for removing surplus inaterial from the periphery of the heel-seatv portion of the Work support,

sole of a shoe carried by a means for producing relative movement of said Work supports and said trimming mechanism, driving mechanism for said trimming mechanism, means for operatively connecting said driving mechanism and said trimming mechanism, and a control device constructed and arranged to control said connecting means and the means tor producing relative movement ot said work support and said trimming mechanism.

22. A machine for use in the manufacture ot slices having', in combination, a single mechanism for treating a shoe, and a pair ot work supports arranged for movement along angularly related rectilinear paths to bring shoes carried on said supports alternately into operative relation to said single treating mechanism.

23. A machine for use in the manufacture ot shoes having, in combination, a single mechanism t'or treating a shoe, a pair ot Work supports, said Work supports being arranged tor movement laterally and then in and out toward and away trom the treating mechanism.

24. A machine for use in the manufacture ot shoes having, in combination, a single mechanism for treating a shoe, a pair of Work supports, said Work supports being arranged for movement laterally and then in and out toward and away from the treating mechanism in a predetermined path such as to cause the treating mechanism to operate progressively upon the Work carried by the ivorl; supports.

25. A machine for use in the iiianutacture oit shoes having, in combination, a single mechanism for treating a shoe, a pair of Work supports, said Work supports being arranged tor movement laterally and then in and out toward and aivay from the treating mechanism, operator-controlled means vtor shitting said supports laterally, and niechanically-actuated means `tor moving said supports toward and away from the treating` mechanism.

26. A machine for use in the manufacture o'tl shoes having, in combination, a single mechanism for treating a shoe, a pair ot' Work supports, said Work supports being arranged for movement laterally and then in and out toward and away from the treating mechanism, operator-controlled means 'for shifting said supports laterally', and mechanically-actuated means for moving said supports toward and away from the treating iiieclianisnnsaid ineclianically-actuated means being set in motion by actuation ot the operator-controlled means.

27. A lieel-seat fitting machine having a pair or" spaced rotary cutters, a Work support, means for causing relativ-e movementl of said Work support and said cutters along a predetermined path to bring the heel-seat portion of the sole ot a shoe carried by said Work support into co-operative relation with the cutters whereby the cutters may operate progressively along the sidesl of the heelseat porton, and means for adjusting said path angularly to equalize the action ot the cutters upon the respective sides ot the sole- A heel-seat fitting machine having a pair oi spaced rotary cutters, a wort: support, a carrier i'or said work support movable toward and aivay trom the cutters to bring the licei-seat portion ot the sole ot a shoe carried by said Work support into cooperative relation with the cutters whereby the cutters may operate progressively along the sides of the heel-seat portion, and means for adjusting the position oit the Work support on the carrier to limit the extent of cutting action along the sides of the sole.

29. A heel-seat fitting machine having a pair of spaced rotary cutters, a Work support, a carrier :tor said Work support movable toward and away from the cutters to bring the heel-seat portion of the sole of a shoe caried by said Work support into cooperative relation With the cutters whereby the cutters may operate progressively along the sides of the lieel-seat portion, and means for adjusting said Work support on the carliu rier to determine the depth of the cutting action heightwise of the sole of the shoe.

30. A heel-seat fitting machine having a pair of spaced rotary cutters, a work support, a carrier for said work support movable toward and away from the cutters to bring the heel-seat portion of the sole of a shoe carried by said work support into cooperative relation with the cutters whereby the cutters may operate progressively along the sides of the heel-seat portion, and means for adjusting said work support upon the carrier laterally of said predetermined path to centralize the path of movement of the work support with respect to said cutters.

3l. In a heel-seat itting machine having a mechanically-actuated trimming cutter operative along a lixed path, a work support movable along a predetermined path toward and away from said cutter to bring a shoe on said support into trimming contact with Said cutter, and means for adjusting said path ot movement of the work support vertically with respect to the path of operation of the cutter to vary the depth of the trimming cut.

32. In a heel-seat litting machine having a mechanically-actuated trimming cutter operative along a fix-ed path, a work support movable along a predetermined path toward and away from said cutter, and means for adjusting said path of movement of the work support laterally with respect to the path ot' operation of the cutter.

83. In a heel-seat litting machine having a mechanically-actuated trimming cutter operative along a fixed path7 a work support movable along a predetermined path toward and away from said cutter7 and means for adjusting said path of movement of the work support angularly with resp-ect to the path of operation of the cutter.

In testimony whereof I have signed my name to this specification.

JOI-IN THOMAS HAVORTH. 

